Our "Instant index" tonight, begins a change coming to your Facebook page, starteding today, the 150 million Facebook users in the U.S. Can choose their jernd in a whole new way, Facebook profiles that identify male, female, transgender, 50 choices in all. One Facebook engineer saying today, it won't impact a lot of people, for the few it does it means the world. And there's news tonight about the international jewel thieves nicknamed the pink panther gang, linked to 340 heists in 35 countries and you can see them in action, right here, smashing that luxury car through the mall in dubai and making off with millions for their getway. Well, tonight, this man is under arrest, suspected of being a member of the gang, he's Serbian, 33 years old, arrested in Madrid and police believe he was part of a brazen heist, that one we just showed you in dubai. And don't say we didn't warn you, new video just days ago, the group of extreme athletes trying to master a slack line stretching between two hot air balloons, 100 feet up in the air, they go down, don't worry, they had parachutes, what a wild run. By the way, "Nightline" was there with the exclusive access and you can see it on a special "Nightline" next month.

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